Start Kepler from a clean-cache. I'm at r22183. Move the example to the default workflows folder and re"Build" the components tree. I get an NPE:

java.lang.NullPointerException at org.kepler.objectmanager.ObjectManager.getHighestObjectRevision(ObjectManager.java:241) at org.kepler.util.WorkflowRun.createWorkflowRunCacheObject(WorkflowRun.java:584) at org.kepler.util.WorkflowRun.cache(WorkflowRun.java:986) at org.kepler.kar.KARFile.cache(KARFile.java:841) at org.kepler.kar.KARFile.cacheKARContents(KARFile.java:567) at org.kepler.kar.KARCacheManager.synchronizeKARCacheWithLocalRepositories(KARCacheManager.java:352)

Oh, the part about archives not showing up is from bug 4559. This might have gotten fixed by something else along the way, or it could be masked by 4559. Not sure. I'm going to say it depends on 4559 and then we can revisit if 4559 ever gets fixed.